Impacts of Human Activities on Groundwater Quality of an Alluvial Aquifer: A Case Study of the Eskişehir Plain, Turkey

1997 ◽  
Vol 5 (4) ◽  
pp. 60-70 ◽  
Author(s):  
Fikret Kaçaroğlu ◽  
Gültekin Günay
Keyword(s):  
Groundwater Quality ◽  
Human Activities ◽  
Alluvial Aquifer

Water quality as an indicator of hydrogeological conditions: a case study of the Belgrade Groundwater Source (Sava/Danube confluence area)

2012 ◽  
Vol 65 (12) ◽  
pp. 2265-2271
Author(s):  
P. Papić ◽  
M. Pušić ◽  
M. Todorović
Keyword(s):  
Groundwater Flow ◽  
Groundwater Quality ◽  
Thick Layer ◽  
Alluvial Aquifer ◽  
Groundwater Source ◽  
The City ◽  
Initial Results ◽  
The Sava River

The City of Belgrade receives most of its drinking water supply from the alluvial aquifer of the Sava River. The wells are radial, placed in the lower part of the aquifer, so they partly run below the Sava riverbed. However, the groundwater quality of the wells in one part of the source (near the confluence of the Sava and Danube rivers) is found to differ somewhat from the groundwater quality of the other wells. The finding gave rise to additional investigations. The results revealed the existence of a deeper, limestone aquifer which is isolated from upper alluvial sediments by a thick layer of clay in most of the terrain. The naturally potential hydraulic contact of the two aquifers was additionally maintained by well operation in this part of the source. According to multiple analyses of groundwater flow using a hydrodynamic mathematical model, a hydrogeological and hydraulic system of groundwater flow was defined. Although the wells are situated adjacent to the river, and some well laterals are below the riverbed, most of the groundwater that flows to the wells is partly from the wider zone of the alluvial aquifer, and partly from the deeper aquifer. The initial results of hydrochemical investigations also showed an unexpected, inverse oxic character of the groundwater in these two aquifers.

scholarly journals Physical–chemical evaluation of groundwater quality in semi-arid areas: case study—Sabzevar plain, Iran

2021 ◽  
Vol 7 (6) ◽  
Author(s):  
Ghasem Panahi ◽  
Mahya Hassanzadeh Eskafi ◽  
Hamidreza Rahimi ◽  
Alireza Faridhosseini ◽  
Xiaonan Tang
Keyword(s):  
Water Resources ◽  
Groundwater Quality ◽  
High Salinity ◽  
Groundwater Resources ◽  
Arid Areas ◽  
Agricultural Use ◽  
Anions And Cations ◽  
Semi Arid

AbstractGroundwater is one of the most important water sources in arid and semi-arid areas. With the increasing world population and the water demand for agriculture and urban use, the need for water resources has increased, especially in arid and semi-arid regions, where groundwater resources play a significant role. To prevent the pollution of groundwater resources, various studies for their preservation and maintenance should be carried out, including a detailed plan for proper management of water resources and establishing a balance between water quality and how to use them. It becomes important to understand the spatial change of the quality of groundwater resources. In this study, Sabzevar plain, a typical region of semi-arid climate in Iran, was selected as a case study to assess the groundwater quality of the region, using data from 24 observation wells between 2015 and 2019. Using Arc GIS software, a map of groundwater quality parameters in the study area was prepared for quality assessment and comparison with existing international standards. The results showed that (except pH and HCO3−) the concentration of Sodium, Magnesium, and other anions and cations is higher than the corresponding WHO standard limit, suggesting that the study area is unsuitable for drinking and agricultural use. According to the Wilcox chart, 87.5% of the samples are in the C4S4 class while 8.33% are in the C4S3 class, showing the groundwater unsuitable for agricultural use due to its high salinity and alkalinity. Piper diagrams show that more than 50% of the samples are non-carbonate alkalis, indicating a very high salinity in the area. According to the pie chart, chlorine ion and sodium ion are the dominant anions and cations in the Sabzevar plain, respectively. The Schuler diagram shows that none of the samples examined were in a good class for drinking. Therefore, considering the importance of water for agricultural activities in the study area, it is recommended to have agricultural management solutions to prevent groundwater mixing with freshwater resources.

Spatio-temporal distribution and chemical characterization of groundwater quality of a wastewater irrigated system: A case study

2018 ◽  
Vol 636 ◽  
pp. 1089-1098 ◽  
Author(s):  
Mahesh Jampani ◽  
Stephan Huelsmann ◽  
Rudolf Liedl ◽  
Sahebrao Sonkamble ◽  
Shakeel Ahmed ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Temporal Distribution ◽  
Chemical Characterization ◽  
System A ◽  
Spatio Temporal
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